The following document walks you through the Scylla Manager setup phase, assuming you completed the installation.
When you install Scylla Manager, it installs a local instance of Scylla to use as it’s database.
If you want to setup Scylla Manager with a remote database use this guide first.

The Scylla Manager setup script is a wizard that automates configuration of Scylla Manager.

Procedure

Run the scyllamgr_setup script to configure the service.
The wizard contains questions about enabling services.
If you answer no to the questions, you will have to start a service manually each time you want to use it.

sudo scyllamgr_setup
Do you want to configure and enable the local ScyllaDB instance as a backend storage for this Scylla Manager installation?
Answer yes to configure and automatically start ScyllaDB when the node boots; answer no to skip this step.
[YES/no]
Do you want to enable Scylla Manager?
Answer yes to automatically start Scylla Manager when the node boots; answer no to skip this step.
[YES/no]
Created symlink from /etc/systemd/system/multi-user.target.wants/scylla-server.service to /usr/lib/systemd/system/scylla-server.service.
Scylla Manager setup finished.